Shut out the world and lose yourself in your music--or hear what's around you. It's your choice with the first in-ear noise cancelling headphones from Bose. Quiet Comfort 20 Acoustic Noise Cancelling headphones are engineered to let you enjoy better sound every day, everywhere you go. Turn on noise cancelling to reduce surrounding distractions and focus on your music. Or, at the touch of a button, activate Aware mode so you can hear what's happening around you without removing the headphones. Inside, exclusive TriPort technology brings your music to life while additional Bose technologies provide dramatic noise cancellation rivaling any full-sized headphone on the market today. Proprietary Stay Hear+ tips create a soft, secure fit. The inline microphone and remote let you switch to calls on your iPhone, and provide control for select iPod, iPhone and iPad models. The rechargeable lithium-ion battery provides up to 16 hours of use. And even when the power is off or the battery runs out, you can still use these headphones to enjoy Bose quality sound. Included: Quiet Comfort 20 headphones; 3 pairs Stay Hear+ tips (S, M, L); clothing clip; rechargeable lithium-ion battery (built-in); USB charging cable; carrying case.

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